Box: How Aaron Levie and his childhood friends built a $2 billion business

Box.com's long-awaited initial public offering could be nigh -- and on more solid footing -- based on a new report.

The enterprise cloud storage provider has raised another $150 million in funding with help from private equity investment firm TPG and global public equity investment firm Coatue Management, according to The Wall Street Journal.

The extra cash flow should help tide things over until Box goes public, which has been delayed to what looks like this fall at the earliest now.

Describing itself as "emerging growth company," Box is following Twitter's path and headed to the New York Stock Exchange under the ticker symbol, "BOX," initially hoping to raise $250 million.

Box’s estimated worth has been pegged between $1.2 billion and $3 billion, based on a Wall Street Journal assessment back in December. That was amid completing a Series F round of venture capital fundraising, garnering $100 million.

Monday's WSJ report suggests that the valuation now stands closer to $2.4 billion.

Box's revenue climbed 111 percent year-over-year to $124.2 million by the end of January 2014, according to the S-1 filing.

But there have been some notable net losses along the way: $50.3 million, $112.6 million and $168.6 million year-over-year for the 12-month time frames ending December 31, 2011, January 31, 2013 and 2014, respectively.

ZDNet reached out to Box.com for comment, and we will update this post once we hear back.

UPDATE: A Box representative responded to our request but declined to comment at this time.

Our plan continues to be to go public when it makes the most sense for Box and the market. As always, investing in our customers, technology, and future growth remains our top priority. TPG and Coatue have great track records with growth companies like Box and we're excited to work with them as we execute on our strategy.